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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [WHL] only one mode available"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110908#c7">Comment # 7</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [WHL] only one mode available"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110908">bug 110908</a>
from <span class="vcard"><a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> <span class="fn">Jani Nikula</span></a>
</span></b>
<pre>Wild idea, is it a fancy new display? Maybe it's Multi-SST. Please ensure
CONFIG_DRM_DP_AUX_CHARDEV=y and /sys/class/drm/card0-eDP-1 actually has
drm_dp_aux0, adjust the dev name accordingly, and run:
# dd if=/dev/drm_dp_aux0 skip=1956 bs=1 count=1 2>/dev/null | hexdump -C
Is the result non-zero?
Most likely it's zero, but this should rule out one potential source of issues.</pre>
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